EEPROM:put()
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put()
描述 向EEPROM中写入任何类型数据或对象。
EEPROM.put(address, data)
address: 写入的位置,从0开始 (int 整型) data: 写入的数据,可以是一个基本类型(例如:float 浮点型)或者是一个自定义的结构体。
数据传递的引用
这个函数使用EEPROM.update()来执行写数据,所以如果值没有改变不会重复写入的。
#include <EEPROM.h> struct MyObject{ float field1; byte field2; char name[10]; }; void setup(){ Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } float f = 123.456f; //Variable to store in EEPROM. int eeAddress = 0; //Location we want the data to be put. //One simple call, with the address first and the object second. EEPROM.put( eeAddress, f ); Serial.println("Written float data type!"); /// put() is designed for use with custom structures too. //Data to store. MyObject customVar = { 3.14f, 65, "Working!" }; eeAddress += sizeof(float); //Move address to the next byte after float 'f'. EEPROM.put( eeAddress, customVar ); Serial.println( "Written custom data type!") Serial.println( "View the example sketch eeprom_get to see how you can retrieve the values!" ); } void loop(){ /* Empty loop */ } |
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